Seudónimo
Seudónimo
30-11-2020
Mathematics
contestada
HELP ME Please and thank you?
Respuesta :
lilytran0315
lilytran0315
06-01-2021
Answer:
98
Step-by-step explanation:
21 + 77
= (20 + 1) + (70 + 7)
= 90 + 8
= 98
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